package com.example.template.formatter;
/**
 * Description:
 * Created by lfywh on 2019/4/222:50
 * Version 1.0
 */

/**
 * @ClassName StringUtils
 * @Description TODO
 * @Date 2019/4/2 22:50
 **/
public class StringUtilss {
    //首字母转小写
    public static String toLowerCaseFirstOne(String s){
        if(Character.isLowerCase(s.charAt(0)))
            return s;
        else
            return (new StringBuilder()).append(Character.toLowerCase(s.charAt(0))).append(s.substring(1)).toString();
    }
    //首字母转大写
    public static String toUpperCaseFirstOne(String s){
        if(Character.isUpperCase(s.charAt(0)))
            return s;
        else
            return (new StringBuilder()).append(Character.toUpperCase(s.charAt(0))).append(s.substring(1)).toString();
    }
}
